International Standard Book Numbers (ISBNs) are important for self publishers. Some printers, print-on-demand publishers, and ebook vendors will offer to provide you with an ISBN, but it’s usually better to get your own. Part of the ISBN includes a “publisher number,” which is assigned to a specific publisher. Therefore, if you allow another company to provide the ISBN, then that company will be listed as the publisher of your book.
We’ll explain everything you need to know: how, where, and why to get your own block of ISBNs, and how to assign them to your print and digital books.